Ben Whishaw Paddington Brown (voice) Sally Hawkins Mary Brown Hugh Grant Phoenix Buchanan Hugh Bonneville Henry Brown Brendan Gleeson Knuckles McGinty Madeleine Harris Judy Brown Samuel Joslin Jonathan Brown Julie Walters Mrs. Bird Jim Broadbent Samuel Gruber Imelda Staunton Aunt Lucy (voice) Peter Capaldi Reginald Curry Michael Gambon Uncle Pastuzo (voice) Simon Farnaby Barry Ben Miller Colonel Lancaster Sanjeev Bhaskar Dr. Jafri Joanna Lumley Felicity Fanshaw Richard Ayoade Forensic Investigator Nicholas Woodeson Insurance Company CEO Tom Conti Judge Gerald Biggleswade Eileen Atkins Madame Kozlova Marie-France Alvarez Mademoiselle Dubois Jessica Hynes Miss Kitts Noah Taylor Phibs Shola Adewusi First Ms. Peters Nadine Marshall Second Ms. Peters Michael Mears Clerk of Court Louis Partridge G-Man Robbie Gee Mr. Barnes Enzo Squillino Jr. Mr. Giuseppe Catherine Shepherd Nelson's Mother Claire Keelan Police Officer Meera Syal Prosecutor Geoffrey Lumb Second Police Officer Alex Jordan Steve Visby Kobna Holdbrook-Smith Warden Walker Emeson Nwolie Double Bass Bob Nicholas Lumley Farmer Jack Stephen McDade Johnny Cashpoint Deepak Anand Mad Dog Cal McCrystal Sir Geoffrey Wilcott Aaron Neil Spoon Tom Davis T-Bone Jamie Demetriou The Professor Justin Edwards Dozy Policeman Kya Garwood Felicity Fanshawe's Assistant Maggie Steed Gertrude Biggleswade Tim Fitzhigham Magician Joel Fry Postman Gus Brown St. Paul's Tour Guide Hiten Patel Office Executive (uncredited) Jag Patel Prisoner (uncredited) Tom Knight Hair Dye Guy